1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Triple.isPS4CPU(); 531 532 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 533 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 534 535 if (const Arg *A = 536 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 537 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 538 539 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 540 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 541 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 542 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 543 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 544 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 545 OPT_fuse_register_sized_bitfield_access); 546 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 547 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 548 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 549 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 550 Opts.NoCommon = Args.hasArg(OPT_fno_common); 551 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 552 Opts.OptimizeSize = getOptimizationLevelSize(Args); 553 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 554 Args.hasArg(OPT_ffreestanding)); 555 if (Opts.SimplifyLibCalls) 556 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 557 Opts.UnrollLoops = 558 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 559 (Opts.OptimizationLevel > 1)); 560 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 561 562 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 563 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 564 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 565 Opts.DebugInfoForProfiling = Args.hasFlag( 566 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 567 568 setPGOInstrumentor(Opts, Args, Diags); 569 Opts.InstrProfileOutput = 570 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 571 Opts.ProfileInstrumentUsePath = 572 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 573 if (!Opts.ProfileInstrumentUsePath.empty()) 574 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 575 576 Opts.CoverageMapping = 577 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 578 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 579 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 580 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 581 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 582 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 583 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 584 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 585 Opts.CodeModel = getCodeModel(Args, Diags); 586 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 587 Opts.DisableFPElim = 588 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 589 Opts.DisableFree = Args.hasArg(OPT_disable_free); 590 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 591 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 592 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 593 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 594 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 595 Args.hasArg(OPT_cl_fast_relaxed_math); 596 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 597 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 598 Args.hasArg(OPT_cl_finite_math_only) || 599 Args.hasArg(OPT_cl_fast_relaxed_math)); 600 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 601 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 602 Args.hasArg(OPT_cl_finite_math_only) || 603 Args.hasArg(OPT_cl_fast_relaxed_math)); 604 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 605 Args.hasArg(OPT_cl_no_signed_zeros) || 606 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 607 Args.hasArg(OPT_cl_fast_relaxed_math)); 608 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 609 Opts.CorrectlyRoundedDivSqrt = 610 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 611 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 612 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 613 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 614 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 615 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 616 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 617 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 618 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 619 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 620 Opts.IncrementalLinkerCompatible = 621 Args.hasArg(OPT_mincremental_linker_compatible); 622 Opts.PIECopyRelocations = 623 Args.hasArg(OPT_mpie_copy_relocations); 624 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 625 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 626 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 627 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 628 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 629 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 630 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 631 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 632 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 633 Args.hasArg(OPT_cl_fast_relaxed_math); 634 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 635 Opts.RelocationModel = getRelocModel(Args, Diags); 636 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 637 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 638 Diags.Report(diag::err_drv_invalid_value) 639 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 640 << Opts.ThreadModel; 641 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 642 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 643 644 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 645 OPT_fno_function_sections, false); 646 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 647 OPT_fno_data_sections, false); 648 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 649 OPT_fno_unique_section_names, true); 650 651 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 652 653 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 654 655 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 656 657 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 658 Opts.EmitSummaryIndex = false; 659 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 660 StringRef S = A->getValue(); 661 if (S == "thin") 662 Opts.EmitSummaryIndex = true; 663 else if (S != "full") 664 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 665 } 666 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 667 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 668 if (IK.getLanguage() != InputKind::LLVM_IR) 669 Diags.Report(diag::err_drv_argument_only_allowed_with) 670 << A->getAsString(Args) << "-x ir"; 671 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 672 } 673 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 674 675 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 676 677 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 678 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 679 680 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 681 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 682 683 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 684 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 685 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 686 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 687 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 688 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 689 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 690 Opts.CoverageNoFunctionNamesInData = 691 Args.hasArg(OPT_coverage_no_function_names_in_data); 692 Opts.CoverageExitBlockBeforeBody = 693 Args.hasArg(OPT_coverage_exit_block_before_body); 694 if (Args.hasArg(OPT_coverage_version_EQ)) { 695 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 696 if (CoverageVersion.size() != 4) { 697 Diags.Report(diag::err_drv_invalid_value) 698 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 699 << CoverageVersion; 700 } else { 701 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 702 } 703 } 704 } 705 // Handle -fembed-bitcode option. 706 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 707 StringRef Name = A->getValue(); 708 unsigned Model = llvm::StringSwitch<unsigned>(Name) 709 .Case("off", CodeGenOptions::Embed_Off) 710 .Case("all", CodeGenOptions::Embed_All) 711 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 712 .Case("marker", CodeGenOptions::Embed_Marker) 713 .Default(~0U); 714 if (Model == ~0U) { 715 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 716 Success = false; 717 } else 718 Opts.setEmbedBitcode( 719 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 720 } 721 // FIXME: For backend options that are not yet recorded as function 722 // attributes in the IR, keep track of them so we can embed them in a 723 // separate data section and use them when building the bitcode. 724 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 725 for (const auto &A : Args) { 726 // Do not encode output and input. 727 if (A->getOption().getID() == options::OPT_o || 728 A->getOption().getID() == options::OPT_INPUT || 729 A->getOption().getID() == options::OPT_x || 730 A->getOption().getID() == options::OPT_fembed_bitcode || 731 (A->getOption().getGroup().isValid() && 732 A->getOption().getGroup().getID() == options::OPT_W_Group)) 733 continue; 734 ArgStringList ASL; 735 A->render(Args, ASL); 736 for (const auto &arg : ASL) { 737 StringRef ArgStr(arg); 738 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 739 // using \00 to seperate each commandline options. 740 Opts.CmdArgs.push_back('\0'); 741 } 742 } 743 } 744 745 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 746 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 747 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 748 Opts.XRayInstructionThreshold = 749 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 750 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 751 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 752 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 753 754 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 755 OPT_compress_debug_sections_EQ)) { 756 if (A->getOption().getID() == OPT_compress_debug_sections) { 757 // TODO: be more clever about the compression type auto-detection 758 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 759 } else { 760 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 761 .Case("none", llvm::DebugCompressionType::None) 762 .Case("zlib", llvm::DebugCompressionType::Z) 763 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 764 .Default(llvm::DebugCompressionType::None); 765 Opts.setCompressDebugSections(DCT); 766 } 767 } 768 769 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 770 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 771 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 772 CodeGenOptions::BitcodeFileToLink F; 773 F.Filename = A->getValue(); 774 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 775 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 776 // When linking CUDA bitcode, propagate function attributes so that 777 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 778 F.PropagateAttrs = true; 779 F.Internalize = true; 780 } 781 Opts.LinkBitcodeFiles.push_back(F); 782 } 783 Opts.SanitizeCoverageType = 784 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 785 Opts.SanitizeCoverageIndirectCalls = 786 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 787 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 788 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 789 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 790 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 791 Opts.SanitizeCoverage8bitCounters = 792 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 793 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 794 Opts.SanitizeCoverageTracePCGuard = 795 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 796 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 797 Opts.SanitizeCoverageInline8bitCounters = 798 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 799 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 800 Opts.SanitizeCoverageStackDepth = 801 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 802 Opts.SanitizeMemoryTrackOrigins = 803 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 804 Opts.SanitizeMemoryUseAfterDtor = 805 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 806 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 807 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 808 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 809 OPT_fno_sanitize_address_use_after_scope)) { 810 Opts.SanitizeAddressUseAfterScope = 811 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 812 } 813 Opts.SanitizeAddressGlobalsDeadStripping = 814 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 815 Opts.SSPBufferSize = 816 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 817 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 818 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 819 StringRef Val = A->getValue(); 820 unsigned StackAlignment = Opts.StackAlignment; 821 Val.getAsInteger(10, StackAlignment); 822 Opts.StackAlignment = StackAlignment; 823 } 824 825 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 826 StringRef Val = A->getValue(); 827 unsigned StackProbeSize = Opts.StackProbeSize; 828 Val.getAsInteger(0, StackProbeSize); 829 Opts.StackProbeSize = StackProbeSize; 830 } 831 832 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 833 StringRef Name = A->getValue(); 834 unsigned Method = llvm::StringSwitch<unsigned>(Name) 835 .Case("legacy", CodeGenOptions::Legacy) 836 .Case("non-legacy", CodeGenOptions::NonLegacy) 837 .Case("mixed", CodeGenOptions::Mixed) 838 .Default(~0U); 839 if (Method == ~0U) { 840 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 841 Success = false; 842 } else { 843 Opts.setObjCDispatchMethod( 844 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 845 } 846 } 847 848 Opts.EmulatedTLS = 849 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 850 851 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 852 StringRef Name = A->getValue(); 853 unsigned Model = llvm::StringSwitch<unsigned>(Name) 854 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 855 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 856 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 857 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 858 .Default(~0U); 859 if (Model == ~0U) { 860 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 861 Success = false; 862 } else { 863 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 864 } 865 } 866 867 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 868 StringRef Val = A->getValue(); 869 if (Val == "ieee") 870 Opts.FPDenormalMode = "ieee"; 871 else if (Val == "preserve-sign") 872 Opts.FPDenormalMode = "preserve-sign"; 873 else if (Val == "positive-zero") 874 Opts.FPDenormalMode = "positive-zero"; 875 else 876 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 877 } 878 879 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 880 if (A->getOption().matches(OPT_fpcc_struct_return)) { 881 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 882 } else { 883 assert(A->getOption().matches(OPT_freg_struct_return)); 884 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 885 } 886 } 887 888 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 889 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 890 bool NeedLocTracking = false; 891 892 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 893 if (!Opts.OptRecordFile.empty()) 894 NeedLocTracking = true; 895 896 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 897 Opts.OptimizationRemarkPattern = 898 GenerateOptimizationRemarkRegex(Diags, Args, A); 899 NeedLocTracking = true; 900 } 901 902 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 903 Opts.OptimizationRemarkMissedPattern = 904 GenerateOptimizationRemarkRegex(Diags, Args, A); 905 NeedLocTracking = true; 906 } 907 908 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 909 Opts.OptimizationRemarkAnalysisPattern = 910 GenerateOptimizationRemarkRegex(Diags, Args, A); 911 NeedLocTracking = true; 912 } 913 914 Opts.DiagnosticsWithHotness = 915 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 916 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 917 bool UsingProfile = UsingSampleProfile || 918 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 919 920 if (Opts.DiagnosticsWithHotness && !UsingProfile) 921 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 922 << "-fdiagnostics-show-hotness"; 923 924 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 925 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 926 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 927 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 928 << "-fdiagnostics-hotness-threshold="; 929 930 // If the user requested to use a sample profile for PGO, then the 931 // backend will need to track source location information so the profile 932 // can be incorporated into the IR. 933 if (UsingSampleProfile) 934 NeedLocTracking = true; 935 936 // If the user requested a flag that requires source locations available in 937 // the backend, make sure that the backend tracks source location information. 938 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 939 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 940 941 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 942 943 // Parse -fsanitize-recover= arguments. 944 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 945 parseSanitizerKinds("-fsanitize-recover=", 946 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 947 Opts.SanitizeRecover); 948 parseSanitizerKinds("-fsanitize-trap=", 949 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 950 Opts.SanitizeTrap); 951 952 Opts.CudaGpuBinaryFileNames = 953 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 954 955 Opts.Backchain = Args.hasArg(OPT_mbackchain); 956 957 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 958 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 959 960 return Success; 961 } 962 963 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 964 ArgList &Args) { 965 using namespace options; 966 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 967 Opts.Targets = Args.getAllArgValues(OPT_MT); 968 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 969 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 970 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 971 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 972 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 973 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 974 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 975 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 976 Opts.ModuleDependencyOutputDir = 977 Args.getLastArgValue(OPT_module_dependency_dir); 978 if (Args.hasArg(OPT_MV)) 979 Opts.OutputFormat = DependencyOutputFormat::NMake; 980 // Add sanitizer blacklists as extra dependencies. 981 // They won't be discovered by the regular preprocessor, so 982 // we let make / ninja to know about this implicit dependency. 983 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 984 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 985 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 986 ModuleFiles.end()); 987 } 988 989 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 990 // Color diagnostics default to auto ("on" if terminal supports) in the driver 991 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 992 // Support both clang's -f[no-]color-diagnostics and gcc's 993 // -f[no-]diagnostics-colors[=never|always|auto]. 994 enum { 995 Colors_On, 996 Colors_Off, 997 Colors_Auto 998 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 999 for (Arg *A : Args) { 1000 const Option &O = A->getOption(); 1001 if (O.matches(options::OPT_fcolor_diagnostics) || 1002 O.matches(options::OPT_fdiagnostics_color)) { 1003 ShowColors = Colors_On; 1004 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1005 O.matches(options::OPT_fno_diagnostics_color)) { 1006 ShowColors = Colors_Off; 1007 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1008 StringRef Value(A->getValue()); 1009 if (Value == "always") 1010 ShowColors = Colors_On; 1011 else if (Value == "never") 1012 ShowColors = Colors_Off; 1013 else if (Value == "auto") 1014 ShowColors = Colors_Auto; 1015 } 1016 } 1017 return ShowColors == Colors_On || 1018 (ShowColors == Colors_Auto && 1019 llvm::sys::Process::StandardErrHasColors()); 1020 } 1021 1022 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1023 DiagnosticsEngine *Diags, 1024 bool DefaultDiagColor, bool DefaultShowOpt) { 1025 using namespace options; 1026 bool Success = true; 1027 1028 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1029 if (Arg *A = 1030 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1031 Opts.DiagnosticSerializationFile = A->getValue(); 1032 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1033 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1034 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1035 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1036 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1037 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1038 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1039 OPT_fno_show_column, 1040 /*Default=*/true); 1041 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1042 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1043 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1044 Opts.ShowOptionNames = 1045 Args.hasFlag(OPT_fdiagnostics_show_option, 1046 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1047 1048 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1049 1050 // Default behavior is to not to show note include stacks. 1051 Opts.ShowNoteIncludeStack = false; 1052 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1053 OPT_fno_diagnostics_show_note_include_stack)) 1054 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1055 Opts.ShowNoteIncludeStack = true; 1056 1057 StringRef ShowOverloads = 1058 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1059 if (ShowOverloads == "best") 1060 Opts.setShowOverloads(Ovl_Best); 1061 else if (ShowOverloads == "all") 1062 Opts.setShowOverloads(Ovl_All); 1063 else { 1064 Success = false; 1065 if (Diags) 1066 Diags->Report(diag::err_drv_invalid_value) 1067 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1068 << ShowOverloads; 1069 } 1070 1071 StringRef ShowCategory = 1072 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1073 if (ShowCategory == "none") 1074 Opts.ShowCategories = 0; 1075 else if (ShowCategory == "id") 1076 Opts.ShowCategories = 1; 1077 else if (ShowCategory == "name") 1078 Opts.ShowCategories = 2; 1079 else { 1080 Success = false; 1081 if (Diags) 1082 Diags->Report(diag::err_drv_invalid_value) 1083 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1084 << ShowCategory; 1085 } 1086 1087 StringRef Format = 1088 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1089 if (Format == "clang") 1090 Opts.setFormat(DiagnosticOptions::Clang); 1091 else if (Format == "msvc") 1092 Opts.setFormat(DiagnosticOptions::MSVC); 1093 else if (Format == "msvc-fallback") { 1094 Opts.setFormat(DiagnosticOptions::MSVC); 1095 Opts.CLFallbackMode = true; 1096 } else if (Format == "vi") 1097 Opts.setFormat(DiagnosticOptions::Vi); 1098 else { 1099 Success = false; 1100 if (Diags) 1101 Diags->Report(diag::err_drv_invalid_value) 1102 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1103 << Format; 1104 } 1105 1106 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1107 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1108 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1109 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1110 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1111 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1112 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1113 Diags, DiagMask); 1114 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1115 DiagMask = DiagnosticLevelMask::All; 1116 Opts.setVerifyIgnoreUnexpected(DiagMask); 1117 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1118 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1119 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1120 Opts.MacroBacktraceLimit = 1121 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1122 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1123 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1124 Args, OPT_ftemplate_backtrace_limit, 1125 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1126 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1127 Args, OPT_fconstexpr_backtrace_limit, 1128 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1129 Opts.SpellCheckingLimit = getLastArgIntValue( 1130 Args, OPT_fspell_checking_limit, 1131 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1132 Opts.SnippetLineLimit = getLastArgIntValue( 1133 Args, OPT_fcaret_diagnostics_max_lines, 1134 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1135 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1136 DiagnosticOptions::DefaultTabStop, Diags); 1137 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1138 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1139 if (Diags) 1140 Diags->Report(diag::warn_ignoring_ftabstop_value) 1141 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1142 } 1143 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1144 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1145 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1146 1147 return Success; 1148 } 1149 1150 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1151 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1152 } 1153 1154 /// Parse the argument to the -ftest-module-file-extension 1155 /// command-line argument. 1156 /// 1157 /// \returns true on error, false on success. 1158 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1159 std::string &BlockName, 1160 unsigned &MajorVersion, 1161 unsigned &MinorVersion, 1162 bool &Hashed, 1163 std::string &UserInfo) { 1164 SmallVector<StringRef, 5> Args; 1165 Arg.split(Args, ':', 5); 1166 if (Args.size() < 5) 1167 return true; 1168 1169 BlockName = Args[0]; 1170 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1171 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1172 if (Args[3].getAsInteger(2, Hashed)) return true; 1173 if (Args.size() > 4) 1174 UserInfo = Args[4]; 1175 return false; 1176 } 1177 1178 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1179 DiagnosticsEngine &Diags, 1180 bool &IsHeaderFile) { 1181 using namespace options; 1182 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1183 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1184 switch (A->getOption().getID()) { 1185 default: 1186 llvm_unreachable("Invalid option in group!"); 1187 case OPT_ast_list: 1188 Opts.ProgramAction = frontend::ASTDeclList; break; 1189 case OPT_ast_dump: 1190 case OPT_ast_dump_all: 1191 case OPT_ast_dump_lookups: 1192 Opts.ProgramAction = frontend::ASTDump; break; 1193 case OPT_ast_print: 1194 Opts.ProgramAction = frontend::ASTPrint; break; 1195 case OPT_ast_view: 1196 Opts.ProgramAction = frontend::ASTView; break; 1197 case OPT_dump_raw_tokens: 1198 Opts.ProgramAction = frontend::DumpRawTokens; break; 1199 case OPT_dump_tokens: 1200 Opts.ProgramAction = frontend::DumpTokens; break; 1201 case OPT_S: 1202 Opts.ProgramAction = frontend::EmitAssembly; break; 1203 case OPT_emit_llvm_bc: 1204 Opts.ProgramAction = frontend::EmitBC; break; 1205 case OPT_emit_html: 1206 Opts.ProgramAction = frontend::EmitHTML; break; 1207 case OPT_emit_llvm: 1208 Opts.ProgramAction = frontend::EmitLLVM; break; 1209 case OPT_emit_llvm_only: 1210 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1211 case OPT_emit_codegen_only: 1212 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1213 case OPT_emit_obj: 1214 Opts.ProgramAction = frontend::EmitObj; break; 1215 case OPT_fixit_EQ: 1216 Opts.FixItSuffix = A->getValue(); 1217 // fall-through! 1218 case OPT_fixit: 1219 Opts.ProgramAction = frontend::FixIt; break; 1220 case OPT_emit_module: 1221 Opts.ProgramAction = frontend::GenerateModule; break; 1222 case OPT_emit_module_interface: 1223 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1224 case OPT_emit_pch: 1225 Opts.ProgramAction = frontend::GeneratePCH; break; 1226 case OPT_emit_pth: 1227 Opts.ProgramAction = frontend::GeneratePTH; break; 1228 case OPT_init_only: 1229 Opts.ProgramAction = frontend::InitOnly; break; 1230 case OPT_fsyntax_only: 1231 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1232 case OPT_module_file_info: 1233 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1234 case OPT_verify_pch: 1235 Opts.ProgramAction = frontend::VerifyPCH; break; 1236 case OPT_print_decl_contexts: 1237 Opts.ProgramAction = frontend::PrintDeclContext; break; 1238 case OPT_print_preamble: 1239 Opts.ProgramAction = frontend::PrintPreamble; break; 1240 case OPT_E: 1241 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1242 case OPT_rewrite_macros: 1243 Opts.ProgramAction = frontend::RewriteMacros; break; 1244 case OPT_rewrite_objc: 1245 Opts.ProgramAction = frontend::RewriteObjC; break; 1246 case OPT_rewrite_test: 1247 Opts.ProgramAction = frontend::RewriteTest; break; 1248 case OPT_analyze: 1249 Opts.ProgramAction = frontend::RunAnalysis; break; 1250 case OPT_migrate: 1251 Opts.ProgramAction = frontend::MigrateSource; break; 1252 case OPT_Eonly: 1253 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1254 } 1255 } 1256 1257 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1258 Opts.Plugins.emplace_back(A->getValue(0)); 1259 Opts.ProgramAction = frontend::PluginAction; 1260 Opts.ActionName = A->getValue(); 1261 } 1262 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1263 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1264 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1265 1266 for (const std::string &Arg : 1267 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1268 std::string BlockName; 1269 unsigned MajorVersion; 1270 unsigned MinorVersion; 1271 bool Hashed; 1272 std::string UserInfo; 1273 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1274 MinorVersion, Hashed, UserInfo)) { 1275 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1276 1277 continue; 1278 } 1279 1280 // Add the testing module file extension. 1281 Opts.ModuleFileExtensions.push_back( 1282 std::make_shared<TestModuleFileExtension>( 1283 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1284 } 1285 1286 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1287 Opts.CodeCompletionAt = 1288 ParsedSourceLocation::FromString(A->getValue()); 1289 if (Opts.CodeCompletionAt.FileName.empty()) 1290 Diags.Report(diag::err_drv_invalid_value) 1291 << A->getAsString(Args) << A->getValue(); 1292 } 1293 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1294 1295 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1296 Opts.Plugins = Args.getAllArgValues(OPT_load); 1297 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1298 Opts.ShowHelp = Args.hasArg(OPT_help); 1299 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1300 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1301 Opts.ShowVersion = Args.hasArg(OPT_version); 1302 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1303 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1304 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1305 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1306 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1307 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1308 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1309 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1310 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1311 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1312 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1313 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1314 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1315 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1316 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1317 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1318 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1319 1320 Opts.CodeCompleteOpts.IncludeMacros 1321 = Args.hasArg(OPT_code_completion_macros); 1322 Opts.CodeCompleteOpts.IncludeCodePatterns 1323 = Args.hasArg(OPT_code_completion_patterns); 1324 Opts.CodeCompleteOpts.IncludeGlobals 1325 = !Args.hasArg(OPT_no_code_completion_globals); 1326 Opts.CodeCompleteOpts.IncludeBriefComments 1327 = Args.hasArg(OPT_code_completion_brief_comments); 1328 1329 Opts.OverrideRecordLayoutsFile 1330 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1331 Opts.AuxTriple = 1332 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1333 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1334 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1335 1336 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1337 OPT_arcmt_modify, 1338 OPT_arcmt_migrate)) { 1339 switch (A->getOption().getID()) { 1340 default: 1341 llvm_unreachable("missed a case"); 1342 case OPT_arcmt_check: 1343 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1344 break; 1345 case OPT_arcmt_modify: 1346 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1347 break; 1348 case OPT_arcmt_migrate: 1349 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1350 break; 1351 } 1352 } 1353 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1354 Opts.ARCMTMigrateReportOut 1355 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1356 Opts.ARCMTMigrateEmitARCErrors 1357 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1358 1359 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1360 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1361 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1362 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1363 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1364 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1365 if (Args.hasArg(OPT_objcmt_migrate_property)) 1366 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1367 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1368 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1369 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1370 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1371 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1372 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1373 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1374 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1375 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1376 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1377 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1378 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1379 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1380 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1381 if (Args.hasArg(OPT_objcmt_atomic_property)) 1382 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1383 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1384 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1385 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1386 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1387 if (Args.hasArg(OPT_objcmt_migrate_all)) 1388 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1389 1390 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1391 1392 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1393 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1394 Diags.Report(diag::err_drv_argument_not_allowed_with) 1395 << "ARC migration" << "ObjC migration"; 1396 } 1397 1398 InputKind DashX(InputKind::Unknown); 1399 if (const Arg *A = Args.getLastArg(OPT_x)) { 1400 StringRef XValue = A->getValue(); 1401 1402 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1403 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1404 bool Preprocessed = XValue.consume_back("-cpp-output"); 1405 bool ModuleMap = XValue.consume_back("-module-map"); 1406 IsHeaderFile = 1407 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1408 1409 // Principal languages. 1410 DashX = llvm::StringSwitch<InputKind>(XValue) 1411 .Case("c", InputKind::C) 1412 .Case("cl", InputKind::OpenCL) 1413 .Case("cuda", InputKind::CUDA) 1414 .Case("c++", InputKind::CXX) 1415 .Case("objective-c", InputKind::ObjC) 1416 .Case("objective-c++", InputKind::ObjCXX) 1417 .Case("renderscript", InputKind::RenderScript) 1418 .Default(InputKind::Unknown); 1419 1420 // "objc[++]-cpp-output" is an acceptable synonym for 1421 // "objective-c[++]-cpp-output". 1422 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1423 DashX = llvm::StringSwitch<InputKind>(XValue) 1424 .Case("objc", InputKind::ObjC) 1425 .Case("objc++", InputKind::ObjCXX) 1426 .Default(InputKind::Unknown); 1427 1428 // Some special cases cannot be combined with suffixes. 1429 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1430 DashX = llvm::StringSwitch<InputKind>(XValue) 1431 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1432 .Case("assembler-with-cpp", InputKind::Asm) 1433 .Cases("ast", "pcm", 1434 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1435 .Case("ir", InputKind::LLVM_IR) 1436 .Default(InputKind::Unknown); 1437 1438 if (DashX.isUnknown()) 1439 Diags.Report(diag::err_drv_invalid_value) 1440 << A->getAsString(Args) << A->getValue(); 1441 1442 if (Preprocessed) 1443 DashX = DashX.getPreprocessed(); 1444 if (ModuleMap) 1445 DashX = DashX.withFormat(InputKind::ModuleMap); 1446 } 1447 1448 // '-' is the default input if none is given. 1449 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1450 Opts.Inputs.clear(); 1451 if (Inputs.empty()) 1452 Inputs.push_back("-"); 1453 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1454 InputKind IK = DashX; 1455 if (IK.isUnknown()) { 1456 IK = FrontendOptions::getInputKindForExtension( 1457 StringRef(Inputs[i]).rsplit('.').second); 1458 // FIXME: Warn on this? 1459 if (IK.isUnknown()) 1460 IK = InputKind::C; 1461 // FIXME: Remove this hack. 1462 if (i == 0) 1463 DashX = IK; 1464 } 1465 1466 // The -emit-module action implicitly takes a module map. 1467 if (Opts.ProgramAction == frontend::GenerateModule && 1468 IK.getFormat() == InputKind::Source) 1469 IK = IK.withFormat(InputKind::ModuleMap); 1470 1471 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1472 } 1473 1474 return DashX; 1475 } 1476 1477 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1478 void *MainAddr) { 1479 std::string ClangExecutable = 1480 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1481 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1482 1483 // Compute the path to the resource directory. 1484 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1485 SmallString<128> P(Dir); 1486 if (ClangResourceDir != "") 1487 llvm::sys::path::append(P, ClangResourceDir); 1488 else 1489 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1490 "clang", CLANG_VERSION_STRING); 1491 1492 return P.str(); 1493 } 1494 1495 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1496 const std::string &WorkingDir) { 1497 using namespace options; 1498 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1499 Opts.Verbose = Args.hasArg(OPT_v); 1500 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1501 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1502 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1503 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1504 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1505 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1506 1507 // Canonicalize -fmodules-cache-path before storing it. 1508 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1509 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1510 if (WorkingDir.empty()) 1511 llvm::sys::fs::make_absolute(P); 1512 else 1513 llvm::sys::fs::make_absolute(WorkingDir, P); 1514 } 1515 llvm::sys::path::remove_dots(P); 1516 Opts.ModuleCachePath = P.str(); 1517 1518 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1519 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1520 Opts.AddPrebuiltModulePath(A->getValue()); 1521 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1522 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1523 Opts.ModulesValidateDiagnosticOptions = 1524 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1525 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1526 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1527 Opts.ModuleCachePruneInterval = 1528 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1529 Opts.ModuleCachePruneAfter = 1530 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1531 Opts.ModulesValidateOncePerBuildSession = 1532 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1533 Opts.BuildSessionTimestamp = 1534 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1535 Opts.ModulesValidateSystemHeaders = 1536 Args.hasArg(OPT_fmodules_validate_system_headers); 1537 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1538 Opts.ModuleFormat = A->getValue(); 1539 1540 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1541 StringRef MacroDef = A->getValue(); 1542 Opts.ModulesIgnoreMacros.insert( 1543 llvm::CachedHashString(MacroDef.split('=').first)); 1544 } 1545 1546 // Add -I..., -F..., and -index-header-map options in order. 1547 bool IsIndexHeaderMap = false; 1548 bool IsSysrootSpecified = 1549 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1550 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1551 if (A->getOption().matches(OPT_index_header_map)) { 1552 // -index-header-map applies to the next -I or -F. 1553 IsIndexHeaderMap = true; 1554 continue; 1555 } 1556 1557 frontend::IncludeDirGroup Group = 1558 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1559 1560 bool IsFramework = A->getOption().matches(OPT_F); 1561 std::string Path = A->getValue(); 1562 1563 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1564 SmallString<32> Buffer; 1565 llvm::sys::path::append(Buffer, Opts.Sysroot, 1566 llvm::StringRef(A->getValue()).substr(1)); 1567 Path = Buffer.str(); 1568 } 1569 1570 Opts.AddPath(Path, Group, IsFramework, 1571 /*IgnoreSysroot*/ true); 1572 IsIndexHeaderMap = false; 1573 } 1574 1575 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1576 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1577 for (const Arg *A : 1578 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1579 if (A->getOption().matches(OPT_iprefix)) 1580 Prefix = A->getValue(); 1581 else if (A->getOption().matches(OPT_iwithprefix)) 1582 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1583 else 1584 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1585 } 1586 1587 for (const Arg *A : Args.filtered(OPT_idirafter)) 1588 Opts.AddPath(A->getValue(), frontend::After, false, true); 1589 for (const Arg *A : Args.filtered(OPT_iquote)) 1590 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1591 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1592 Opts.AddPath(A->getValue(), frontend::System, false, 1593 !A->getOption().matches(OPT_iwithsysroot)); 1594 for (const Arg *A : Args.filtered(OPT_iframework)) 1595 Opts.AddPath(A->getValue(), frontend::System, true, true); 1596 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1597 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1598 /*IgnoreSysRoot=*/false); 1599 1600 // Add the paths for the various language specific isystem flags. 1601 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1602 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1603 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1604 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1605 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1606 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1607 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1608 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1609 1610 // Add the internal paths from a driver that detects standard include paths. 1611 for (const Arg *A : 1612 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1613 frontend::IncludeDirGroup Group = frontend::System; 1614 if (A->getOption().matches(OPT_internal_externc_isystem)) 1615 Group = frontend::ExternCSystem; 1616 Opts.AddPath(A->getValue(), Group, false, true); 1617 } 1618 1619 // Add the path prefixes which are implicitly treated as being system headers. 1620 for (const Arg *A : 1621 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1622 Opts.AddSystemHeaderPrefix( 1623 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1624 1625 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1626 Opts.AddVFSOverlayFile(A->getValue()); 1627 } 1628 1629 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1630 const llvm::Triple &T, 1631 PreprocessorOptions &PPOpts, 1632 LangStandard::Kind LangStd) { 1633 // Set some properties which depend solely on the input kind; it would be nice 1634 // to move these to the language standard, and have the driver resolve the 1635 // input kind + language standard. 1636 // 1637 // FIXME: Perhaps a better model would be for a single source file to have 1638 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1639 // simultaneously active? 1640 if (IK.getLanguage() == InputKind::Asm) { 1641 Opts.AsmPreprocessor = 1; 1642 } else if (IK.isObjectiveC()) { 1643 Opts.ObjC1 = Opts.ObjC2 = 1; 1644 } 1645 1646 if (LangStd == LangStandard::lang_unspecified) { 1647 // Based on the base language, pick one. 1648 switch (IK.getLanguage()) { 1649 case InputKind::Unknown: 1650 case InputKind::LLVM_IR: 1651 llvm_unreachable("Invalid input kind!"); 1652 case InputKind::OpenCL: 1653 LangStd = LangStandard::lang_opencl10; 1654 break; 1655 case InputKind::CUDA: 1656 LangStd = LangStandard::lang_cuda; 1657 break; 1658 case InputKind::Asm: 1659 case InputKind::C: 1660 // The PS4 uses C99 as the default C standard. 1661 if (T.isPS4()) 1662 LangStd = LangStandard::lang_gnu99; 1663 else 1664 LangStd = LangStandard::lang_gnu11; 1665 break; 1666 case InputKind::ObjC: 1667 LangStd = LangStandard::lang_gnu11; 1668 break; 1669 case InputKind::CXX: 1670 case InputKind::ObjCXX: 1671 // The PS4 uses C++11 as the default C++ standard. 1672 if (T.isPS4()) 1673 LangStd = LangStandard::lang_gnucxx11; 1674 else 1675 LangStd = LangStandard::lang_gnucxx98; 1676 break; 1677 case InputKind::RenderScript: 1678 LangStd = LangStandard::lang_c99; 1679 break; 1680 } 1681 } 1682 1683 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1684 Opts.LineComment = Std.hasLineComments(); 1685 Opts.C99 = Std.isC99(); 1686 Opts.C11 = Std.isC11(); 1687 Opts.CPlusPlus = Std.isCPlusPlus(); 1688 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1689 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1690 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1691 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1692 Opts.Digraphs = Std.hasDigraphs(); 1693 Opts.GNUMode = Std.isGNUMode(); 1694 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1695 Opts.HexFloats = Std.hasHexFloats(); 1696 Opts.ImplicitInt = Std.hasImplicitInt(); 1697 1698 // Set OpenCL Version. 1699 Opts.OpenCL = Std.isOpenCL(); 1700 if (LangStd == LangStandard::lang_opencl10) 1701 Opts.OpenCLVersion = 100; 1702 else if (LangStd == LangStandard::lang_opencl11) 1703 Opts.OpenCLVersion = 110; 1704 else if (LangStd == LangStandard::lang_opencl12) 1705 Opts.OpenCLVersion = 120; 1706 else if (LangStd == LangStandard::lang_opencl20) 1707 Opts.OpenCLVersion = 200; 1708 1709 // OpenCL has some additional defaults. 1710 if (Opts.OpenCL) { 1711 Opts.AltiVec = 0; 1712 Opts.ZVector = 0; 1713 Opts.LaxVectorConversions = 0; 1714 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1715 Opts.NativeHalfType = 1; 1716 Opts.NativeHalfArgsAndReturns = 1; 1717 // Include default header file for OpenCL. 1718 if (Opts.IncludeDefaultHeader) { 1719 PPOpts.Includes.push_back("opencl-c.h"); 1720 } 1721 } 1722 1723 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1724 if (Opts.CUDA) 1725 // Set default FP_CONTRACT to FAST. 1726 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1727 1728 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1729 if (Opts.RenderScript) { 1730 Opts.NativeHalfType = 1; 1731 Opts.NativeHalfArgsAndReturns = 1; 1732 } 1733 1734 // OpenCL and C++ both have bool, true, false keywords. 1735 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1736 1737 // OpenCL has half keyword 1738 Opts.Half = Opts.OpenCL; 1739 1740 // C++ has wchar_t keyword. 1741 Opts.WChar = Opts.CPlusPlus; 1742 1743 Opts.GNUKeywords = Opts.GNUMode; 1744 Opts.CXXOperatorNames = Opts.CPlusPlus; 1745 1746 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1747 1748 Opts.DollarIdents = !Opts.AsmPreprocessor; 1749 } 1750 1751 /// Attempt to parse a visibility value out of the given argument. 1752 static Visibility parseVisibility(Arg *arg, ArgList &args, 1753 DiagnosticsEngine &diags) { 1754 StringRef value = arg->getValue(); 1755 if (value == "default") { 1756 return DefaultVisibility; 1757 } else if (value == "hidden" || value == "internal") { 1758 return HiddenVisibility; 1759 } else if (value == "protected") { 1760 // FIXME: diagnose if target does not support protected visibility 1761 return ProtectedVisibility; 1762 } 1763 1764 diags.Report(diag::err_drv_invalid_value) 1765 << arg->getAsString(args) << value; 1766 return DefaultVisibility; 1767 } 1768 1769 /// Check if input file kind and language standard are compatible. 1770 static bool IsInputCompatibleWithStandard(InputKind IK, 1771 const LangStandard &S) { 1772 switch (IK.getLanguage()) { 1773 case InputKind::Unknown: 1774 case InputKind::LLVM_IR: 1775 llvm_unreachable("should not parse language flags for this input"); 1776 1777 case InputKind::C: 1778 case InputKind::ObjC: 1779 case InputKind::RenderScript: 1780 return S.getLanguage() == InputKind::C; 1781 1782 case InputKind::OpenCL: 1783 return S.getLanguage() == InputKind::OpenCL; 1784 1785 case InputKind::CXX: 1786 case InputKind::ObjCXX: 1787 return S.getLanguage() == InputKind::CXX; 1788 1789 case InputKind::CUDA: 1790 // FIXME: What -std= values should be permitted for CUDA compilations? 1791 return S.getLanguage() == InputKind::CUDA || 1792 S.getLanguage() == InputKind::CXX; 1793 1794 case InputKind::Asm: 1795 // Accept (and ignore) all -std= values. 1796 // FIXME: The -std= value is not ignored; it affects the tokenization 1797 // and preprocessing rules if we're preprocessing this asm input. 1798 return true; 1799 } 1800 1801 llvm_unreachable("unexpected input language"); 1802 } 1803 1804 /// Get language name for given input kind. 1805 static const StringRef GetInputKindName(InputKind IK) { 1806 switch (IK.getLanguage()) { 1807 case InputKind::C: 1808 return "C"; 1809 case InputKind::ObjC: 1810 return "Objective-C"; 1811 case InputKind::CXX: 1812 return "C++"; 1813 case InputKind::ObjCXX: 1814 return "Objective-C++"; 1815 case InputKind::OpenCL: 1816 return "OpenCL"; 1817 case InputKind::CUDA: 1818 return "CUDA"; 1819 case InputKind::RenderScript: 1820 return "RenderScript"; 1821 1822 case InputKind::Asm: 1823 return "Asm"; 1824 case InputKind::LLVM_IR: 1825 return "LLVM IR"; 1826 1827 case InputKind::Unknown: 1828 break; 1829 } 1830 llvm_unreachable("unknown input language"); 1831 } 1832 1833 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1834 const TargetOptions &TargetOpts, 1835 PreprocessorOptions &PPOpts, 1836 DiagnosticsEngine &Diags) { 1837 // FIXME: Cleanup per-file based stuff. 1838 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1839 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1840 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1841 #define LANGSTANDARD(id, name, lang, desc, features) \ 1842 .Case(name, LangStandard::lang_##id) 1843 #define LANGSTANDARD_ALIAS(id, alias) \ 1844 .Case(alias, LangStandard::lang_##id) 1845 #include "clang/Frontend/LangStandards.def" 1846 .Default(LangStandard::lang_unspecified); 1847 if (LangStd == LangStandard::lang_unspecified) { 1848 Diags.Report(diag::err_drv_invalid_value) 1849 << A->getAsString(Args) << A->getValue(); 1850 // Report supported standards with short description. 1851 for (unsigned KindValue = 0; 1852 KindValue != LangStandard::lang_unspecified; 1853 ++KindValue) { 1854 const LangStandard &Std = LangStandard::getLangStandardForKind( 1855 static_cast<LangStandard::Kind>(KindValue)); 1856 if (IsInputCompatibleWithStandard(IK, Std)) { 1857 auto Diag = Diags.Report(diag::note_drv_use_standard); 1858 Diag << Std.getName() << Std.getDescription(); 1859 unsigned NumAliases = 0; 1860 #define LANGSTANDARD(id, name, lang, desc, features) 1861 #define LANGSTANDARD_ALIAS(id, alias) \ 1862 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1863 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1864 #include "clang/Frontend/LangStandards.def" 1865 Diag << NumAliases; 1866 #define LANGSTANDARD(id, name, lang, desc, features) 1867 #define LANGSTANDARD_ALIAS(id, alias) \ 1868 if (KindValue == LangStandard::lang_##id) Diag << alias; 1869 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1870 #include "clang/Frontend/LangStandards.def" 1871 } 1872 } 1873 } else { 1874 // Valid standard, check to make sure language and standard are 1875 // compatible. 1876 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1877 if (!IsInputCompatibleWithStandard(IK, Std)) { 1878 Diags.Report(diag::err_drv_argument_not_allowed_with) 1879 << A->getAsString(Args) << GetInputKindName(IK); 1880 } 1881 } 1882 } 1883 1884 // -cl-std only applies for OpenCL language standards. 1885 // Override the -std option in this case. 1886 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1887 LangStandard::Kind OpenCLLangStd 1888 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1889 .Cases("cl", "CL", LangStandard::lang_opencl10) 1890 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1891 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1892 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1893 .Default(LangStandard::lang_unspecified); 1894 1895 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1896 Diags.Report(diag::err_drv_invalid_value) 1897 << A->getAsString(Args) << A->getValue(); 1898 } 1899 else 1900 LangStd = OpenCLLangStd; 1901 } 1902 1903 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1904 1905 llvm::Triple T(TargetOpts.Triple); 1906 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1907 1908 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1909 // This option should be deprecated for CL > 1.0 because 1910 // this option was added for compatibility with OpenCL 1.0. 1911 if (Args.getLastArg(OPT_cl_strict_aliasing) 1912 && Opts.OpenCLVersion > 100) { 1913 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1914 std::string(".") + 1915 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1916 Diags.Report(diag::warn_option_invalid_ocl_version) 1917 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1918 } 1919 1920 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1921 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1922 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1923 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1924 // name, as it doesn't seem a useful distinction. 1925 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1926 Opts.GNUKeywords); 1927 1928 if (Args.hasArg(OPT_fno_operator_names)) 1929 Opts.CXXOperatorNames = 0; 1930 1931 if (Args.hasArg(OPT_fcuda_is_device)) 1932 Opts.CUDAIsDevice = 1; 1933 1934 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1935 Opts.CUDAAllowVariadicFunctions = 1; 1936 1937 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1938 Opts.CUDAHostDeviceConstexpr = 0; 1939 1940 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1941 Opts.CUDADeviceFlushDenormalsToZero = 1; 1942 1943 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1944 Opts.CUDADeviceApproxTranscendentals = 1; 1945 1946 if (Opts.ObjC1) { 1947 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1948 StringRef value = arg->getValue(); 1949 if (Opts.ObjCRuntime.tryParse(value)) 1950 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1951 } 1952 1953 if (Args.hasArg(OPT_fobjc_gc_only)) 1954 Opts.setGC(LangOptions::GCOnly); 1955 else if (Args.hasArg(OPT_fobjc_gc)) 1956 Opts.setGC(LangOptions::HybridGC); 1957 else if (Args.hasArg(OPT_fobjc_arc)) { 1958 Opts.ObjCAutoRefCount = 1; 1959 if (!Opts.ObjCRuntime.allowsARC()) 1960 Diags.Report(diag::err_arc_unsupported_on_runtime); 1961 } 1962 1963 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1964 // whether the feature is actually enabled. This is predominantly 1965 // determined by -fobjc-runtime, but we allow it to be overridden 1966 // from the command line for testing purposes. 1967 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1968 Opts.ObjCWeakRuntime = 1; 1969 else 1970 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1971 1972 // ObjCWeak determines whether __weak is actually enabled. 1973 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1974 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1975 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1976 assert(!Opts.ObjCWeak); 1977 } else if (Opts.getGC() != LangOptions::NonGC) { 1978 Diags.Report(diag::err_objc_weak_with_gc); 1979 } else if (!Opts.ObjCWeakRuntime) { 1980 Diags.Report(diag::err_objc_weak_unsupported); 1981 } else { 1982 Opts.ObjCWeak = 1; 1983 } 1984 } else if (Opts.ObjCAutoRefCount) { 1985 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1986 } 1987 1988 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1989 Opts.ObjCInferRelatedResultType = 0; 1990 1991 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1992 Opts.ObjCSubscriptingLegacyRuntime = 1993 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1994 } 1995 1996 if (Args.hasArg(OPT_fgnu89_inline)) { 1997 if (Opts.CPlusPlus) 1998 Diags.Report(diag::err_drv_argument_not_allowed_with) 1999 << "-fgnu89-inline" << GetInputKindName(IK); 2000 else 2001 Opts.GNUInline = 1; 2002 } 2003 2004 if (Args.hasArg(OPT_fapple_kext)) { 2005 if (!Opts.CPlusPlus) 2006 Diags.Report(diag::warn_c_kext); 2007 else 2008 Opts.AppleKext = 1; 2009 } 2010 2011 if (Args.hasArg(OPT_print_ivar_layout)) 2012 Opts.ObjCGCBitmapPrint = 1; 2013 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2014 Opts.NoConstantCFStrings = 1; 2015 2016 if (Args.hasArg(OPT_fzvector)) 2017 Opts.ZVector = 1; 2018 2019 if (Args.hasArg(OPT_pthread)) 2020 Opts.POSIXThreads = 1; 2021 2022 // The value-visibility mode defaults to "default". 2023 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2024 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2025 } else { 2026 Opts.setValueVisibilityMode(DefaultVisibility); 2027 } 2028 2029 // The type-visibility mode defaults to the value-visibility mode. 2030 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2031 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2032 } else { 2033 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2034 } 2035 2036 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2037 Opts.InlineVisibilityHidden = 1; 2038 2039 if (Args.hasArg(OPT_ftrapv)) { 2040 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2041 // Set the handler, if one is specified. 2042 Opts.OverflowHandler = 2043 Args.getLastArgValue(OPT_ftrapv_handler); 2044 } 2045 else if (Args.hasArg(OPT_fwrapv)) 2046 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2047 2048 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2049 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2050 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2051 Opts.MSCompatibilityVersion = 0; 2052 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2053 VersionTuple VT; 2054 if (VT.tryParse(A->getValue())) 2055 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2056 << A->getValue(); 2057 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2058 VT.getMinor().getValueOr(0) * 100000 + 2059 VT.getSubminor().getValueOr(0); 2060 } 2061 2062 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2063 // is specified, or -std is set to a conforming mode. 2064 // Trigraphs are disabled by default in c++1z onwards. 2065 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2066 Opts.Trigraphs = 2067 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2068 2069 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2070 OPT_fno_dollars_in_identifiers, 2071 Opts.DollarIdents); 2072 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2073 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2074 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2075 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2076 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2077 Opts.ConstStrings); 2078 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2079 Opts.LaxVectorConversions = 0; 2080 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2081 Opts.ThreadsafeStatics = 0; 2082 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2083 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2084 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2085 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2086 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2087 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2088 2089 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2090 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2091 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2092 && Opts.OpenCLVersion >= 200); 2093 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2094 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2095 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2096 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2097 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2098 Opts.ModulesDeclUse = 2099 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2100 Opts.ModulesLocalVisibility = 2101 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2102 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2103 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2104 Opts.ModulesSearchAll = Opts.Modules && 2105 !Args.hasArg(OPT_fno_modules_search_all) && 2106 Args.hasArg(OPT_fmodules_search_all); 2107 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2108 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2109 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2110 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2111 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2112 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2113 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2114 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2115 if (!Opts.NoBuiltin) 2116 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2117 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2118 Opts.RelaxedTemplateTemplateArgs = 2119 Args.hasArg(OPT_frelaxed_template_template_args); 2120 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2121 Opts.AlignedAllocation = 2122 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2123 Opts.AlignedAllocation); 2124 Opts.AlignedAllocationUnavailable = 2125 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2126 Opts.NewAlignOverride = 2127 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2128 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2129 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2130 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2131 << A->getValue(); 2132 Opts.NewAlignOverride = 0; 2133 } 2134 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2135 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2136 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2137 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2138 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2139 Opts.InstantiationDepth = 2140 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2141 Opts.ArrowDepth = 2142 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2143 Opts.ConstexprCallDepth = 2144 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2145 Opts.ConstexprStepLimit = 2146 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2147 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2148 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2149 Opts.NumLargeByValueCopy = 2150 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2151 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2152 Opts.ObjCConstantStringClass = 2153 Args.getLastArgValue(OPT_fconstant_string_class); 2154 Opts.ObjCDefaultSynthProperties = 2155 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2156 Opts.EncodeExtendedBlockSig = 2157 Args.hasArg(OPT_fencode_extended_block_signature); 2158 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2159 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2160 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2161 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2162 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2163 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2164 Opts.Static = Args.hasArg(OPT_static_define); 2165 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2166 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2167 || Args.hasArg(OPT_fdump_record_layouts); 2168 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2169 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2170 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2171 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2172 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2173 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2174 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2175 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2176 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2177 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2178 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2179 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2180 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2181 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2182 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2183 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2184 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2185 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2186 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2187 // is enabled. 2188 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2189 | Opts.NativeHalfArgsAndReturns; 2190 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2191 2192 // __declspec is enabled by default for the PS4 by the driver, and also 2193 // enabled for Microsoft Extensions or Borland Extensions, here. 2194 // 2195 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2196 // CUDA extension. However, it is required for supporting 2197 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2198 // been rewritten in terms of something more generic, remove the Opts.CUDA 2199 // term here. 2200 Opts.DeclSpecKeyword = 2201 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2202 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2203 2204 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2205 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2206 .Case("target", LangOptions::ASMM_Target) 2207 .Case("no", LangOptions::ASMM_Off) 2208 .Case("yes", LangOptions::ASMM_On) 2209 .Default(255)) { 2210 default: 2211 Diags.Report(diag::err_drv_invalid_value) 2212 << "-faddress-space-map-mangling=" << A->getValue(); 2213 break; 2214 case LangOptions::ASMM_Target: 2215 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2216 break; 2217 case LangOptions::ASMM_On: 2218 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2219 break; 2220 case LangOptions::ASMM_Off: 2221 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2222 break; 2223 } 2224 } 2225 2226 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2227 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2228 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2229 A->getValue()) 2230 .Case("single", 2231 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2232 .Case("multiple", 2233 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2234 .Case("virtual", 2235 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2236 .Default(LangOptions::PPTMK_BestCase); 2237 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2238 Diags.Report(diag::err_drv_invalid_value) 2239 << "-fms-memptr-rep=" << A->getValue(); 2240 2241 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2242 } 2243 2244 // Check for MS default calling conventions being specified. 2245 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2246 LangOptions::DefaultCallingConvention DefaultCC = 2247 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2248 A->getValue()) 2249 .Case("cdecl", LangOptions::DCC_CDecl) 2250 .Case("fastcall", LangOptions::DCC_FastCall) 2251 .Case("stdcall", LangOptions::DCC_StdCall) 2252 .Case("vectorcall", LangOptions::DCC_VectorCall) 2253 .Default(LangOptions::DCC_None); 2254 if (DefaultCC == LangOptions::DCC_None) 2255 Diags.Report(diag::err_drv_invalid_value) 2256 << "-fdefault-calling-conv=" << A->getValue(); 2257 2258 llvm::Triple T(TargetOpts.Triple); 2259 llvm::Triple::ArchType Arch = T.getArch(); 2260 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2261 DefaultCC == LangOptions::DCC_StdCall) && 2262 Arch != llvm::Triple::x86; 2263 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2264 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2265 if (emitError) 2266 Diags.Report(diag::err_drv_argument_not_allowed_with) 2267 << A->getSpelling() << T.getTriple(); 2268 else 2269 Opts.setDefaultCallingConv(DefaultCC); 2270 } 2271 2272 // -mrtd option 2273 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2274 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2275 Diags.Report(diag::err_drv_argument_not_allowed_with) 2276 << A->getSpelling() << "-fdefault-calling-conv"; 2277 else { 2278 llvm::Triple T(TargetOpts.Triple); 2279 if (T.getArch() != llvm::Triple::x86) 2280 Diags.Report(diag::err_drv_argument_not_allowed_with) 2281 << A->getSpelling() << T.getTriple(); 2282 else 2283 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2284 } 2285 } 2286 2287 // Check if -fopenmp is specified. 2288 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2289 Opts.OpenMPUseTLS = 2290 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2291 Opts.OpenMPIsDevice = 2292 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2293 2294 if (Opts.OpenMP) { 2295 int Version = 2296 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2297 if (Version != 0) 2298 Opts.OpenMP = Version; 2299 // Provide diagnostic when a given target is not expected to be an OpenMP 2300 // device or host. 2301 if (!Opts.OpenMPIsDevice) { 2302 switch (T.getArch()) { 2303 default: 2304 break; 2305 // Add unsupported host targets here: 2306 case llvm::Triple::nvptx: 2307 case llvm::Triple::nvptx64: 2308 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2309 << TargetOpts.Triple; 2310 break; 2311 } 2312 } 2313 } 2314 2315 // Set the flag to prevent the implementation from emitting device exception 2316 // handling code for those requiring so. 2317 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2318 Opts.Exceptions = 0; 2319 Opts.CXXExceptions = 0; 2320 } 2321 2322 // Get the OpenMP target triples if any. 2323 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2324 2325 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2326 llvm::Triple TT(A->getValue(i)); 2327 2328 if (TT.getArch() == llvm::Triple::UnknownArch || 2329 !(TT.getArch() == llvm::Triple::ppc || 2330 TT.getArch() == llvm::Triple::ppc64 || 2331 TT.getArch() == llvm::Triple::ppc64le || 2332 TT.getArch() == llvm::Triple::nvptx || 2333 TT.getArch() == llvm::Triple::nvptx64 || 2334 TT.getArch() == llvm::Triple::x86 || 2335 TT.getArch() == llvm::Triple::x86_64)) 2336 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2337 else 2338 Opts.OMPTargetTriples.push_back(TT); 2339 } 2340 } 2341 2342 // Get OpenMP host file path if any and report if a non existent file is 2343 // found 2344 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2345 Opts.OMPHostIRFile = A->getValue(); 2346 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2347 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2348 << Opts.OMPHostIRFile; 2349 } 2350 2351 // Record whether the __DEPRECATED define was requested. 2352 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2353 OPT_fno_deprecated_macro, 2354 Opts.Deprecated); 2355 2356 // FIXME: Eliminate this dependency. 2357 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2358 OptSize = getOptimizationLevelSize(Args); 2359 Opts.Optimize = Opt != 0; 2360 Opts.OptimizeSize = OptSize != 0; 2361 2362 // This is the __NO_INLINE__ define, which just depends on things like the 2363 // optimization level and -fno-inline, not actually whether the backend has 2364 // inlining enabled. 2365 Opts.NoInlineDefine = !Opts.Optimize; 2366 if (Arg *InlineArg = Args.getLastArg( 2367 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2368 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2369 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2370 Opts.NoInlineDefine = true; 2371 2372 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2373 Args.hasArg(OPT_cl_fast_relaxed_math); 2374 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2375 Args.hasArg(OPT_cl_finite_math_only) || 2376 Args.hasArg(OPT_cl_fast_relaxed_math); 2377 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2378 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2379 Args.hasArg(OPT_cl_fast_relaxed_math); 2380 2381 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2382 StringRef Val = A->getValue(); 2383 if (Val == "fast") 2384 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2385 else if (Val == "on") 2386 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2387 else if (Val == "off") 2388 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2389 else 2390 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2391 } 2392 2393 Opts.RetainCommentsFromSystemHeaders = 2394 Args.hasArg(OPT_fretain_comments_from_system_headers); 2395 2396 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2397 switch (SSP) { 2398 default: 2399 Diags.Report(diag::err_drv_invalid_value) 2400 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2401 break; 2402 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2403 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2404 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2405 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2406 } 2407 2408 // Parse -fsanitize= arguments. 2409 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2410 Diags, Opts.Sanitize); 2411 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2412 Opts.SanitizeAddressFieldPadding = 2413 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2414 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2415 2416 // -fxray-instrument 2417 Opts.XRayInstrument = 2418 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2419 2420 // -fxray-{always,never}-instrument= filenames. 2421 Opts.XRayAlwaysInstrumentFiles = 2422 Args.getAllArgValues(OPT_fxray_always_instrument); 2423 Opts.XRayNeverInstrumentFiles = 2424 Args.getAllArgValues(OPT_fxray_never_instrument); 2425 2426 // -fallow-editor-placeholders 2427 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2428 } 2429 2430 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2431 switch (Action) { 2432 case frontend::ASTDeclList: 2433 case frontend::ASTDump: 2434 case frontend::ASTPrint: 2435 case frontend::ASTView: 2436 case frontend::EmitAssembly: 2437 case frontend::EmitBC: 2438 case frontend::EmitHTML: 2439 case frontend::EmitLLVM: 2440 case frontend::EmitLLVMOnly: 2441 case frontend::EmitCodeGenOnly: 2442 case frontend::EmitObj: 2443 case frontend::FixIt: 2444 case frontend::GenerateModule: 2445 case frontend::GenerateModuleInterface: 2446 case frontend::GeneratePCH: 2447 case frontend::GeneratePTH: 2448 case frontend::ParseSyntaxOnly: 2449 case frontend::ModuleFileInfo: 2450 case frontend::VerifyPCH: 2451 case frontend::PluginAction: 2452 case frontend::PrintDeclContext: 2453 case frontend::RewriteObjC: 2454 case frontend::RewriteTest: 2455 case frontend::RunAnalysis: 2456 case frontend::MigrateSource: 2457 return false; 2458 2459 case frontend::DumpRawTokens: 2460 case frontend::DumpTokens: 2461 case frontend::InitOnly: 2462 case frontend::PrintPreamble: 2463 case frontend::PrintPreprocessedInput: 2464 case frontend::RewriteMacros: 2465 case frontend::RunPreprocessorOnly: 2466 return true; 2467 } 2468 llvm_unreachable("invalid frontend action"); 2469 } 2470 2471 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2472 FileManager &FileMgr, 2473 DiagnosticsEngine &Diags, 2474 frontend::ActionKind Action) { 2475 using namespace options; 2476 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2477 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2478 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2479 Opts.TokenCache = A->getValue(); 2480 else 2481 Opts.TokenCache = Opts.ImplicitPTHInclude; 2482 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2483 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2484 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2485 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2486 2487 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2488 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2489 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2490 2491 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2492 StringRef Value(A->getValue()); 2493 size_t Comma = Value.find(','); 2494 unsigned Bytes = 0; 2495 unsigned EndOfLine = 0; 2496 2497 if (Comma == StringRef::npos || 2498 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2499 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2500 Diags.Report(diag::err_drv_preamble_format); 2501 else { 2502 Opts.PrecompiledPreambleBytes.first = Bytes; 2503 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2504 } 2505 } 2506 2507 // Add macros from the command line. 2508 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2509 if (A->getOption().matches(OPT_D)) 2510 Opts.addMacroDef(A->getValue()); 2511 else 2512 Opts.addMacroUndef(A->getValue()); 2513 } 2514 2515 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2516 2517 // Add the ordered list of -includes. 2518 for (const Arg *A : Args.filtered(OPT_include)) 2519 Opts.Includes.emplace_back(A->getValue()); 2520 2521 for (const Arg *A : Args.filtered(OPT_chain_include)) 2522 Opts.ChainedIncludes.emplace_back(A->getValue()); 2523 2524 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2525 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2526 2527 if (Split.second.empty()) { 2528 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2529 continue; 2530 } 2531 2532 Opts.addRemappedFile(Split.first, Split.second); 2533 } 2534 2535 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2536 StringRef Name = A->getValue(); 2537 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2538 .Case("libc++", ARCXX_libcxx) 2539 .Case("libstdc++", ARCXX_libstdcxx) 2540 .Case("none", ARCXX_nolib) 2541 .Default(~0U); 2542 if (Library == ~0U) 2543 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2544 else 2545 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2546 } 2547 2548 // Always avoid lexing editor placeholders when we're just running the 2549 // preprocessor as we never want to emit the 2550 // "editor placeholder in source file" error in PP only mode. 2551 if (isStrictlyPreprocessorAction(Action)) 2552 Opts.LexEditorPlaceholders = false; 2553 } 2554 2555 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2556 ArgList &Args, 2557 frontend::ActionKind Action) { 2558 using namespace options; 2559 2560 if (isStrictlyPreprocessorAction(Action)) 2561 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2562 else 2563 Opts.ShowCPP = 0; 2564 2565 Opts.ShowComments = Args.hasArg(OPT_C); 2566 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2567 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2568 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2569 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2570 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2571 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2572 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2573 } 2574 2575 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2576 DiagnosticsEngine &Diags) { 2577 using namespace options; 2578 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2579 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2580 StringRef Value = A->getValue(); 2581 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2582 .Case("default", llvm::EABI::Default) 2583 .Case("4", llvm::EABI::EABI4) 2584 .Case("5", llvm::EABI::EABI5) 2585 .Case("gnu", llvm::EABI::GNU) 2586 .Default(llvm::EABI::Unknown); 2587 if (EABIVersion == llvm::EABI::Unknown) 2588 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2589 << Value; 2590 else 2591 Opts.EABIVersion = EABIVersion; 2592 } 2593 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2594 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2595 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2596 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2597 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2598 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2599 // Use the default target triple if unspecified. 2600 if (Opts.Triple.empty()) 2601 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2602 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2603 } 2604 2605 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2606 const char *const *ArgBegin, 2607 const char *const *ArgEnd, 2608 DiagnosticsEngine &Diags) { 2609 bool Success = true; 2610 2611 // Parse the arguments. 2612 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2613 const unsigned IncludedFlagsBitmask = options::CC1Option; 2614 unsigned MissingArgIndex, MissingArgCount; 2615 InputArgList Args = 2616 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2617 MissingArgCount, IncludedFlagsBitmask); 2618 LangOptions &LangOpts = *Res.getLangOpts(); 2619 2620 // Check for missing argument error. 2621 if (MissingArgCount) { 2622 Diags.Report(diag::err_drv_missing_argument) 2623 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2624 Success = false; 2625 } 2626 2627 // Issue errors on unknown arguments. 2628 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2629 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2630 Success = false; 2631 } 2632 2633 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2634 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2635 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2636 Success &= 2637 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2638 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2639 ParseCommentArgs(LangOpts.CommentOpts, Args); 2640 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2641 // FIXME: We shouldn't have to pass the DashX option around here 2642 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2643 LangOpts.IsHeaderFile); 2644 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2645 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2646 Res.getTargetOpts()); 2647 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2648 Res.getFileSystemOpts().WorkingDir); 2649 if (DashX.getFormat() == InputKind::Precompiled || 2650 DashX.getLanguage() == InputKind::LLVM_IR) { 2651 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2652 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2653 // what the input type is. 2654 if (Args.hasArg(OPT_fobjc_arc)) 2655 LangOpts.ObjCAutoRefCount = 1; 2656 // PIClevel and PIELevel are needed during code generation and this should be 2657 // set regardless of the input type. 2658 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2659 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2660 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2661 Diags, LangOpts.Sanitize); 2662 } else { 2663 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2664 // FIXME: Should we really be calling this for an InputKind::Asm input? 2665 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2666 Res.getPreprocessorOpts(), Diags); 2667 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2668 LangOpts.ObjCExceptions = 1; 2669 } 2670 2671 if (LangOpts.CUDA) { 2672 // During CUDA device-side compilation, the aux triple is the 2673 // triple used for host compilation. 2674 if (LangOpts.CUDAIsDevice) 2675 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2676 } 2677 2678 // Set the triple of the host for OpenMP device compile. 2679 if (LangOpts.OpenMPIsDevice) 2680 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2681 2682 // FIXME: Override value name discarding when asan or msan is used because the 2683 // backend passes depend on the name of the alloca in order to print out 2684 // names. 2685 Res.getCodeGenOpts().DiscardValueNames &= 2686 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2687 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2688 2689 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2690 // PCH file and find the original header name. Remove the need to do that in 2691 // ParsePreprocessorArgs and remove the FileManager 2692 // parameters from the function and the "FileManager.h" #include. 2693 FileManager FileMgr(Res.getFileSystemOpts()); 2694 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2695 Res.getFrontendOpts().ProgramAction); 2696 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2697 Res.getFrontendOpts().ProgramAction); 2698 2699 // Turn on -Wspir-compat for SPIR target. 2700 llvm::Triple T(Res.getTargetOpts().Triple); 2701 auto Arch = T.getArch(); 2702 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2703 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2704 } 2705 return Success; 2706 } 2707 2708 std::string CompilerInvocation::getModuleHash() const { 2709 // Note: For QoI reasons, the things we use as a hash here should all be 2710 // dumped via the -module-info flag. 2711 using llvm::hash_code; 2712 using llvm::hash_value; 2713 using llvm::hash_combine; 2714 2715 // Start the signature with the compiler version. 2716 // FIXME: We'd rather use something more cryptographically sound than 2717 // CityHash, but this will do for now. 2718 hash_code code = hash_value(getClangFullRepositoryVersion()); 2719 2720 // Extend the signature with the language options 2721 #define LANGOPT(Name, Bits, Default, Description) \ 2722 code = hash_combine(code, LangOpts->Name); 2723 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2724 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2725 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2726 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2727 #include "clang/Basic/LangOptions.def" 2728 2729 for (StringRef Feature : LangOpts->ModuleFeatures) 2730 code = hash_combine(code, Feature); 2731 2732 // Extend the signature with the target options. 2733 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2734 TargetOpts->ABI); 2735 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2736 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2737 2738 // Extend the signature with preprocessor options. 2739 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2740 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2741 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2742 2743 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2744 I = getPreprocessorOpts().Macros.begin(), 2745 IEnd = getPreprocessorOpts().Macros.end(); 2746 I != IEnd; ++I) { 2747 // If we're supposed to ignore this macro for the purposes of modules, 2748 // don't put it into the hash. 2749 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2750 // Check whether we're ignoring this macro. 2751 StringRef MacroDef = I->first; 2752 if (hsOpts.ModulesIgnoreMacros.count( 2753 llvm::CachedHashString(MacroDef.split('=').first))) 2754 continue; 2755 } 2756 2757 code = hash_combine(code, I->first, I->second); 2758 } 2759 2760 // Extend the signature with the sysroot and other header search options. 2761 code = hash_combine(code, hsOpts.Sysroot, 2762 hsOpts.ModuleFormat, 2763 hsOpts.UseDebugInfo, 2764 hsOpts.UseBuiltinIncludes, 2765 hsOpts.UseStandardSystemIncludes, 2766 hsOpts.UseStandardCXXIncludes, 2767 hsOpts.UseLibcxx, 2768 hsOpts.ModulesValidateDiagnosticOptions); 2769 code = hash_combine(code, hsOpts.ResourceDir); 2770 2771 // Extend the signature with the user build path. 2772 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2773 2774 // Extend the signature with the module file extensions. 2775 const FrontendOptions &frontendOpts = getFrontendOpts(); 2776 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2777 code = ext->hashExtension(code); 2778 } 2779 2780 // Extend the signature with the enabled sanitizers, if at least one is 2781 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2782 SanitizerSet SanHash = LangOpts->Sanitize; 2783 SanHash.clear(getPPTransparentSanitizers()); 2784 if (!SanHash.empty()) 2785 code = hash_combine(code, SanHash.Mask); 2786 2787 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2788 } 2789 2790 namespace clang { 2791 2792 template<typename IntTy> 2793 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2794 IntTy Default, 2795 DiagnosticsEngine *Diags) { 2796 IntTy Res = Default; 2797 if (Arg *A = Args.getLastArg(Id)) { 2798 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2799 if (Diags) 2800 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2801 << A->getValue(); 2802 } 2803 } 2804 return Res; 2805 } 2806 2807 2808 // Declared in clang/Frontend/Utils.h. 2809 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2810 DiagnosticsEngine *Diags) { 2811 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2812 } 2813 2814 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2815 uint64_t Default, 2816 DiagnosticsEngine *Diags) { 2817 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2818 } 2819 2820 void BuryPointer(const void *Ptr) { 2821 // This function may be called only a small fixed amount of times per each 2822 // invocation, otherwise we do actually have a leak which we want to report. 2823 // If this function is called more than kGraveYardMaxSize times, the pointers 2824 // will not be properly buried and a leak detector will report a leak, which 2825 // is what we want in such case. 2826 static const size_t kGraveYardMaxSize = 16; 2827 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2828 static std::atomic<unsigned> GraveYardSize; 2829 unsigned Idx = GraveYardSize++; 2830 if (Idx >= kGraveYardMaxSize) 2831 return; 2832 GraveYard[Idx] = Ptr; 2833 } 2834 2835 IntrusiveRefCntPtr<vfs::FileSystem> 2836 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2837 DiagnosticsEngine &Diags) { 2838 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2839 } 2840 2841 IntrusiveRefCntPtr<vfs::FileSystem> 2842 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2843 DiagnosticsEngine &Diags, 2844 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2845 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2846 return BaseFS; 2847 2848 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2849 new vfs::OverlayFileSystem(BaseFS)); 2850 // earlier vfs files are on the bottom 2851 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2852 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2853 BaseFS->getBufferForFile(File); 2854 if (!Buffer) { 2855 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2856 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2857 } 2858 2859 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2860 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2861 if (!FS.get()) { 2862 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2863 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2864 } 2865 Overlay->pushOverlay(FS); 2866 } 2867 return Overlay; 2868 } 2869 } // end namespace clang 2870